Nelson geeen



(No Model.)

N. GREEN. METAL SHINGLE.

No. 364,507. Patented June '7, 1887..

InI erdor. 7&4 Zwu I JM'&M

Mil Leases.

UNIT D STATES PATENT OFFICE.

NELSON GREEN, OF WATERFORD, ONTARIO, CANADA.

METAL SHINGLE.

SPECIFICATION forming part of Letters Patent No. 364,507, dated June 7, 1887.

(N0 model.)

To all whom it may concern.-

Be it known that l, NELSON GREEN, of the village of Waterford, in the county of Norfolk, in the Province of Ontario, Canada, manufacturer, have invented certain new and useful Improvements in Metal Shingles, of which the following is a specification.

This invention relates to that class of metallic shingles which have two adjacent edges formed with a narrow fold on one side of the sheet, and on the remaining two adjacent edges and on the opposite side of the sheet a double or S fold; and the novelty lies in the peculiarities of construction, all as more fully hereinafter described and claimed.

Figure l is a view representing the shingles as they will appear when being laid in position. Fig. 2 is a perspective top view of a single shingle. Fig. 3 is a bottom view of same. Fig. 4 is an enlarged cross-section of the shingle.

The adjacent edges (marked A) are bent, as shown, so as to form a single narrow fold on the side of the shingle which I make the bottom. The other two edges (marked B) are benton the opposite or top side of the shingle, so as to form a double or S-shaped fold, the outer part of the fold extending beyond the body of the shingle, as clearly shown in Fig. 4, so that the nails a, which are used for securing the shingle to the roof, are completely covered by the adjacent shingle when its folded edge A is hooked over the fold B, as indicated in Fig. 4.

In order to make the S-shaped fold it is of course necessary to clip off the corner between the edges 13, and in order to make this corner water-tight it is necessary that the S-shaped fold shall be made in the following manner, care being taken that the diagonal line on which the said corner is clipped off is outside of the point of intersection of the two lines on which the inner fold, b, is made: The inner fold, b, is first bent, and then the outer fold,c, on one edge. The inner fold, b, on the adjacent edge is then made, and afterward the outer edge, thus leaving a projecting point,d, which forms a pocket to effectually close the joint between the adjacent S'shaped folds 13.

From this description it will be seen that the joints thus formed permit the free expansion and contraction of the shingles, while at the same time, owing to the peculiarstyle of the fold B, 110 water can possibly penetrate the joints. Consequently they are what I term storm-proof.

I attach importance to the fact that at the corner of the two adjacent Sfolds the end of one fold overlaps the other, as clearly shown in Figs. 1 and 2, thus insuring a perfectlytight joint and preventing leakage at these points.

I am aware of the Patent No. 276,085, in which is shown a metallic shingle formed of a blank with trimmed cornersand bent so that the under portion of the S-fold projects beyond the margin, and do not seek to cover such construction.

\Vhat I claim as my invention is- Arectangular metal sheet having formed on two of its adjacent edgesa single narrow fold on one side of the plate, and having on the remaining two adjacent edges and on the opposite side of the sheeta double or S-shaped fold formed, and.one of the S-shaped folds overlapping the other, substantially as and for the purpose specified.

'VV-aterford, December 4, 1886.

NELSON GREEN. In presence of LYMAN N. COLLVER, GLENN GREEN. 

